학술논문
Electron backscatter diffraction study of polycrystalline YBa2 Cu3 O7−δ ceramics
Document Type
Article
Author
Source
Subject
*POLYCRYSTALS
*ELECTRON diffraction
*CERAMIC superconductors
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Language
ISSN
0921-4534
Abstract
The electron backscatter diffraction (EBSD) technique was applied to polycrystalline YBa2 Cu3 O7−δ ceramics. To obtain good quality EBSD Kikuchi patterns on the ceramic superconductors, a new sample polishing route was established. Samples with and without KClO3 -doping were investigated; and the crystallographic orientations of the grains were analyzed using pole figures and EBSD orientation mapping. On the polycrystalline KClO3 -doped YBa2 Cu3 O7−δ samples we found two major orientations (0 0 1) and (1 0 0) normal to the sample surface, while the undoped sample did not exhibit any orientation maxima. We ascribe this observation to the effect of a liquid phase due to the KClO3 -additive during the preparation process. [Copyright &y& Elsevier]